in Auto-generate Unit-of-Order Name,
specify whether you want the system to create a system-generated
unit- of-order name that is statistically unique for this
distributed topic. Any message landing on this distributed topic
that does not already belong to a unit-of-order is automatically
assigned with this default unit-of-order name.

In Unit-of-Order Routing, specify how
the distributed topic members are selected as the destination
for a message. If set to Hash, the
producer computes the topic member. If set to Path
Service, the configured Path Service determines the
topic member.

In
Attach Sender Credential, specify whether
messages landing on this uniform distributed topic member should
attach the credential of the sending user by selecting either:
Supports, which sets the JMSXUserID
property with the security principal of the sending user if
requested; Never, which never sets the
JMSXUserID property with the security principal of the sending
user; Always, which always sets the
JMSXUserID property with the security principal of the sending
user.

In
Create Destination Identifier, specify a
reference name for a member of a distributed destination that
provides a way to lookup that destination using
createTopic. See How to Lookup a
Destination.

In
SAF Export Policy, specify whether a user
can send messages to this distributed topic using the
Store-and-Forward service.

In
Messaging Performance Preference, specify
how long the distributed topic member should wait (if at all)
before creating full batches of available messages for delivery to
consumers. The maximum message count of a full batch is controlled
by the JMS connection factory's Message Maximum per
Session setting.

Do Not Batch Messages -- Available
messages are promptly delivered to consumers.

High Waiting Threshold for Message
Batching -- Wait even longer before less-than-full
batches are delivered with available messages.

If you
are using the Unit-of-Work feature:

In Unit-of-Work (UOW) Message Handling
Policy, specify whether the UOW feature is enabled
for this distributed topic member. A UOW is a set of messages
that are processed as a single unit.
Pass-Through - by default, this
distributed topic member does not treat messages as part of a
UOW. Single Message Delivery - this
setting should only be selected if UOW consumers are receiving
messages on this distributed topic member. When selected, UOW
messages are formed into a list and are consumed as an
ObjectMessage containing the list.

In Expiration Time for Incomplete UOW
Messages, specify the maximum amount of time before
undelivered messages in an incomplete UOW are expired. Such
messages will then follow the distributed topic member's
expiration policy defined for undeliverable messages.